Gabatarwa da gyare-gyaren jerin gwano na musamman masu siffa

Magnet, maganadisu na musamman mai siffa a cikin tsarin samarwa yana da wahala a yi aiki na lokaci ɗaya.

Matsakaicin Magnet da tsari na tsari: Magnet foda na maganadisu bayan fuskantarwa, gyare-gyare da matsi na isostatic da aka yi da ƙarancin ƙarancin ƙima yana da ƙasa sosai, wanda shine mummunan abu a cikin samarwa, blank kuma ya ƙunshi ƙarin pores, adsorption mai sauƙi na babban adadin iskar gas wanda ke ɗauke da shi. ruwa, zuwa tsari na gaba don kawo matsala da matsaloli.Saboda ƙarancin ƙarancin billet ɗin kore, raguwar raguwar raguwa yana da girma, nakasawa mai sauƙi, sauƙi mai sauƙi daga juriya, don haka ya zama dole don daidaitawa, da aiwatar da buƙatun ƙwarewar aikin sintering suna da girma.

A cikin jerin tsari na daidaitawar maganadisu da gyare-gyare, blank ɗin yana buƙatar bi ta matakai biyu lokacin da aka sanya shi cikin tanderun sintering:

Sintering da tsufa: 

1. Zumunci;A babban tazarar zafin jiki na ɗan lokaci, mahimmancin ɗimbin yawa na jiki yana ci gaba.Matsakaicin dangi ya inganta daga 0.6-0.7 zuwa sama da 0.95.Abun ciki na kowane hatsi yana ƙara haɓaka.An rage sarari tsakanin barbashi, kuma ana fitar da tururin ruwa da aka lalata.

2. Tsufa:sintered NdFeb maganadisoYawan billet yana da girma, Br yana da girma, amma tilastawa da samfurin ƙarfin maganadisu ba su da yawa.Wannan saboda lokacin mai arzikin neodymium bai tarwatse sosai ba.A lokacin zafin jiki na tsufa, ɓangaren bakin ciki mai wadataccen neodymium yana kewaye babban ɓangarorin lokaci kuma ya keɓe su daga juna, yana samar da ingantaccen tsarin tsari wanda zai dace da babban ƙarfi.Bayan tsufa, ana ƙara Br na billet ɗin kaɗan kaɗan, amma tilastawa yana ninka sau biyu.

Gabatarwa da samar da jeri na maganadisu bayan siyar da samfuran babu komai suna buƙatar tantancewa da gwadawa kamar haka don tabbatar da cewa aikin magnet ɗin ya cancanci:

A. Gwajin aikin Magnetic bayan babban zafin jiki mai zafi;

B. Ganewa mai yawa bayan yawan zafin jiki mai zafi;

C. Binciken ma'auni na bayyanar bayan babban zafin jiki; 

D. Bayan babban zafin jiki sintering: carbon, oxygen da nitrogen bincike;

E. Bayan zana demagnetization kwana ta cikin Magnetic mita domin sanin ko blank ya gamsu da kasa misali.Tun da babban rabo naNdFeb magnetan yi shi da baƙin ƙarfe, NdFeb yana da sauƙin oxidized lokacin da aka fallasa shi zuwa iska ko yanayi mai ɗanɗano.Electroplating Magnet na Dindindinhanya ce mai mahimmanci don ƙawata kamannin maganadisu da ƙara lokacin adana maganadisu.Magnet surface sarrafa yafi zinc, black zinc, nickel, jan karfe, zinariya, azurfa, epoxy guduro.

Tsarin shimfidar wuri ya bambanta da launi daban-daban, lokacin adanawa ba iri ɗaya bane, kowanne yana da fa'ida da rashin amfani. 

1. Zinc: bayyanar launin azurfa ne, yana iya zama tsawon sa'o'i 12 zuwa 48 na gishiri, ana iya haɗa shi tare da wasu amfani da manne (kamar AB manne), idan tasirin electroplating yana da kyau, za'a iya adana shi tsawon shekaru biyu zuwa biyar. , Electroplating kudin ne low.

2. Nickel: bayyanar yana kama da launi na bakin karfe, wanda aka sanya shi a cikin bayyanar iska ba shi da sauƙi don oxidize, kyakkyawan bayyanar, mai sheki mai kyau, zai iya zama 12 zuwa 72 hours na gwajin gwajin gishiri.Rashin hasara shi ne cewa ba shi da sauƙi don amfani da manne don haɗin kai, bayyanar mannewar lubrication ba ta da ƙarfi, kuma murfin yana da sauƙi don faɗi.Don hanzarta iskar shaka, kasuwa yanzu ya fi nickel - jan ƙarfe - hanyar saka nickel don yin sa'o'i 24-96 na fesa gishiri.

3. Black Zinc: bisa ga abokin ciniki ta musamman bukatun na maganadisu surface aka sarrafa a cikin baki, shi ne a kan galvanized sinadaran magani don ƙara wani Layer na baki tabbatarwa film, wannan fim kuma iya taka da sakamako na maganadisu kiyayewa, ƙara da. lokacin fesa gishiri.Amma bayyanarsa yana da sauƙi a zazzage shi, rasa tasirin kulawa.

4. Black Nickel: tare da buƙatun buƙatun baƙar fata na tutiya, yana kan tushen nickel plating bayan maganin sinadarai don ƙara Layer na fim ɗin kulawa na baki. 

5. Zinariya: yawanci ana amfani da su a cikin kayan aikin maganadisu na kayan ado, yanzu akwai shahararrun kayan ado na hannu da yawa. 

6. Epoxy resin: don ƙara juriya na feshin gishiri ga samfurin, ana ƙara fentin fenti a wajen maganadisu bayan sanya nickel, wanda galibi baki ne.Yana da wani shafi tare da mai kyau lalata juriya a waje da maganadisu shafi.Matsakaicin maganadisu da kafawa a cikin tsari na maganadisu, ma'ana shine magnetize kayan maganadisu ko rashin magnetin maganadisu don ƙara maganadisu.Gabaɗaya, abin maganadisu da za a yi maganadisu ana iya sanya shi a cikin wani fili mai ƙarfi na maganadisu da aka samar ta hanyar coil ɗin da ake bi ta cikin sa, kuma filin maganadisu da ke cikin magnet ɗin yana da ƙarfi ta hanyar filin maganadisu na waje.